I bought a load balancer at hetzner and for my backend (written in Java, Web-Server is Javalin) I want to use the Proxy Protocol, that the IP-Adresses will be redirected to my web-services.
Hetzner Load Balancer enable Proxy Protocol Hetzner says, that my service must support this. They also linked an how-to for nginx: https://docs.nginx.com/nginx/admin-guide/load-balancer/using-proxy-protocol/
At the moment, my services aren't reachable through the load balancer if I enable the proxy protocol: Bad Message 400 reason: Illegal character SPACE=' '
Does anyone know, how to do this for Javalin? Thanks alot!